Summary of the invention
The invention provides a kind of nail-anvil assembly and a kind of surgical operating instrument of surgical operating instrument, this nail anvilIn assembly, nail-anvil hat can overturn with respect to nail anvil rod, and then can reduce nail anvil nail anvil in the time exiting tissueThe damage of cap to suture ring.
For achieving the above object, the invention provides following technical scheme:
A nail-anvil assembly for surgical operating instrument, comprises nail-anvil hat, nail anvil rod and works as described nail-anvil hat placeIn the time that station can be sewed up, lock the lockable mechanism of described nail-anvil hat and described nail anvil rod relative position;
Described nail-anvil hat comprises cap body and the protruding connecting rod to described nail anvil rod, described connecting rod and described nail anvilBetween bar part overlapping and by axial line pivotally connected perpendicular to described nail anvil rod length direction;
Described lockable mechanism comprises retainer ring and elastic drive part, and wherein, described retainer ring can be along described companyExtension bar length direction is sheathed on the outside of described connecting rod slidably, and with the propelling of described surgical operating instrumentDevice is in transmission connection; One end of described elastic drive part is installed on described nail anvil rod, and the other end is installed on described nailAnvil cap; When described retainer ring is in the time locking station, described Fixing shrink ring is located at described connecting rod and described nailThe overlapping portion outside of anvil bar, described elastic drive part is in energy accumulating state; When described retainer ring is in described propellingDevice promotes when lower distal direction moves to release station to remove between described nail anvil rod and described connecting rodLocking, described nail-anvil hat moves to station turning under the power of the releasing effect of described elastic drive part.
For ease of describing, while being set in surgical operating instrument operation, be nearside near user's a side, away fromUser's a side is distally.
In above-mentioned nail-anvil assembly, when nail-anvil hat is in the time can sewing up station and retainer ring in locking station,Fixing shrink ring is located at the appearance of the connecting rod of nail-anvil hat and the overlapping position of nail anvil rod and connecting rod and nail anvil rodFace all with the contacted inner surfaces of described retainer ring, now, the axial line of retainer ring and the axial line of connecting rod,The axial line of nail anvil rod overlaps, and connecting rod can not rotate around the axial line of pivot with respect to nail anvil rod, retainer ringRealize the locking to connecting rod and nail anvil rod, and then the relative position of locking nail anvil rod and described nail-anvil hat closesSystem, remains on nail-anvil hat and can sew up station, and now, elastic drive part is in energy accumulating state; Work as propellerWhile movement along the length direction distal direction of nail anvil rod under the drive unit of surgical operating instrument drives, push awayEnter device drive retainer ring distal direction to move until the outer surface of nail anvil rod no longer with the inner surface of retainer ringOffset, and then make retainer ring remove the locking to relative position relation between nail anvil rod and connecting rod, now,Elastic drive part is released power, and then drives connecting rod to rotate around pivot with respect to nail anvil rod, and nail-anvil hat is moved toStation turning.
Therefore, above-mentioned nail-anvil assembly can make nail-anvil hat turn to upset work in the time exiting tissuePosition, reduces the area that passes through that nail-anvil hat needs when the suture ring, and then reduces the damage of nail-anvil hat to suture ringWound.
Preferably, described elastic drive part comprises spring, and described nail-anvil hat be in the time can sewing up station, instituteState releasing outside the axial line that force direction is positioned at described pivot of spring.
Preferably,
When described nail-anvil hat is in the time can sewing up station, described spring is in stretching energy accumulating state.
Preferably, described nail anvil rod is provided with the first steady pin, and described nail-anvil hat is provided with the second steady pin,One end of described spring is installed on described the first steady pin, and the other end is installed on described the second steady pin;
Axial line, the axial line of the second steady pin and the axial line of described pivot of described the first steady pinBe parallel to each other, described nail-anvil hat is in the time can sewing up station, and the axial line of described the first steady pin, second admittedlyThe axial line of rationed marketing and the axial line of pivot are in the plane perpendicular to described the first steady pin axle center lineBetween projection, be triangularly arranged.
Preferably, described the second steady pin is arranged at described connecting rod or cap body.
Preferably, when described nail-anvil hat is in the time can sewing up station, described spring is in compress energy storage state.
Preferably, described nail anvil rod is provided with steady pin, and described nail-anvil hat is provided with chute; Described springOne end is installed on described nail anvil rod by described steady pin, the other end and described chute be slidably matched and with instituteThe bottom land of stating chute offsets.
Preferably, described elastic drive part comprises spring leaf.
The present invention also provides a kind of surgical operating instrument, comprise drive unit and with described drive unit transmissionThe propeller connecting, also comprises any nail-anvil assembly providing in technique scheme, described drive unitBe in transmission connection with the propeller of described nail-anvil assembly and can drive described propeller along following closely in described nail-anvil assemblyThe length direction distal direction of anvil bar moves.
Preferably, described surgical operating instrument is stapler.
Brief description of the drawings
The structural representation of the surgical operating instrument that Fig. 1 provides for the embodiment of the present invention;
The structural representation coordinating between the nail-anvil assembly that Fig. 2 provides for an embodiment of the present invention and shell;
In the nail-anvil assembly that Fig. 3 provides for an embodiment of the present invention, nail-anvil hat is in the time can sewing up station and nailFit structure schematic diagram between anvil bar;
Fig. 4 is the cutaway view of structure shown in Fig. 3;
In the nail-anvil assembly that Fig. 5 provides for an embodiment of the present invention, nail-anvil hat is in the time of station turning and nail anvilFit structure schematic diagram between bar;
When Fig. 6 is spring leaf for the elastic drive part in the nail-anvil assembly providing in the another kind of embodiment of the present inventionStructural representation.
Reference numeral:
1, nail-anvil assembly 2, nail kit assembly 3, fixed handle
4, drive unit 11, nail-anvil hat 12, nail anvil rod
13, propeller 14, retainer ring 15, elastic drive part
16, pivot 111, cap body 112, connecting rod
151, the second steady pin 152, the first steady pins
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearlyChu, intactly description, obviously, described embodiment is only the present invention's part embodiment, instead ofWhole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creationThe every other embodiment obtaining under property work prerequisite, belongs to the scope of protection of the invention.
The invention provides a kind of nail-anvil assembly of surgical operating instrument and a kind ofly there is above-mentioned nail-anvil assemblySurgical operating instrument, preferably, above-mentioned surgical operating instrument is stapler; For ease of to nail-anvil assembly wholeUpset opportunity and principle in individual surgical procedure are described, and in the present embodiment, above-mentioned nail-anvil assembly are retouchedIn the process of stating, introduced the related notion to surgical operating instrument, therefore, in literary composition no longer separately on havingThe operation principle of stating the surgical operating instrument of nail-anvil assembly is described.
Please refer to Fig. 1～Fig. 5, wherein, the structure of the surgical operating instrument that Fig. 1 provides for the embodiment of the present inventionSchematic diagram; The structural representation coordinating between the nail-anvil assembly that Fig. 2 provides for an embodiment of the present invention and shellFigure; In the nail-anvil assembly that Fig. 3 provides for an embodiment of the present invention, nail-anvil hat is in the time can sewing up station and nailFit structure schematic diagram between anvil bar; Fig. 4 is the cutaway view of structure shown in Fig. 3; Fig. 5 is the present invention oneThe fit structure of nail-anvil hat in the time of station turning and between nail anvil rod in the nail-anvil assembly that kind embodiment providesSchematic diagram.
As depicted in figs. 1 and 2, in a kind of specific embodiment, the operation device that the embodiment of the present invention providesTool comprise nail-anvil assembly 1, nail kit assembly 2, fixed handle 3, drive unit 4 and with drive unit 4The propeller 13 being in transmission connection. Nail-anvil hat 11 in nail-anvil assembly 1 relatively nail anvil rod 12 around pivot 16Overturn, propeller 13 is arranged in nail kit assembly 2; As shown in Figure 2, Figure 3 and Figure 4, nail anvil groupIn part 1, nail-anvil hat 11 be in sewing up station, specifically refer between nail-anvil hat 11 and nail anvil rod 12 inThe station of nail-anvil hat 11 when vertical state, nail-anvil hat 11 is in the time can sewing up station, and nail kit assembly 2 is relativeNail anvil rod 12 can coordinate with nail-anvil hat 11 in the time that nail-anvil hat 11 directions are slided, and realizes two sections are waited to sew upStitching and the cutting of tissue; As shown in Figure 5, nail-anvil hat 11, in station turning, specifically refers to nail-anvil hat11 and nail anvil rod 12 between the station of nail-anvil hat 11 while being the angle that is greater than 0 degree and is less than 90 degree, above-mentionedNail-anvil hat 11 is in the time can sewing up station, and the relative position relation between nail-anvil hat 11 and nail anvil rod 12 is logicalCrossing lockable mechanism locks; Between tissue sew up after, by External Force Acting make lockable mechanism move, withRemove lockable mechanism to the locking between nail-anvil hat 11 and nail anvil rod 12 and by relative nail-anvil hat 11 and nailAnvil bar 12 overturns around pivot 16 between the two, makes nail-anvil hat 11 turn to upset work from sewing up stationPosition, can reduce nail-anvil assembly 1 nail-anvil hat 11 wound to suture ring when organizing interior taking-ups, reductionOperation risk.
Please refer to Fig. 2, Fig. 3 and Fig. 4, the nail anvil group of the surgical operating instrument that the embodiment of the present invention providesPart comprises nail-anvil hat 11, nail anvil rod 12 and in the time can sewing up station, locks nail-anvil hat when nail-anvil hat 1111 with the lockable mechanism of nail anvil rod 12 relative positions, lockable mechanism comprises retainer ring 14 and elastic drive part15; Wherein:
Nail-anvil hat 11 comprises cap body 111 and the protruding connecting rod 112 to nail anvil rod 12; Connecting rod 112 and nailBetween anvil bar 12, part is overlapping, and by being arranged at overlapping position, the axle of connecting rod 112 and nail anvil rod 12Heart line is hinged perpendicular to the pivot 16 of nail anvil rod 12 length directions;
Propeller 13 can be sheathed on nail anvil rod 12 outsides slidably along the length direction of nail anvil rod 12, and nearThe drive unit 4 of side one end and surgical operating instrument is in transmission connection;
Retainer ring 14 can be sheathed on slidably along connecting rod 112 length directions the outside of connecting rod 112, GuFixed ring 14 is positioned at distally one side of propeller 13 and is in transmission connection with propeller 13; Elastic drive part 15One end is installed on nail anvil rod 12, the other end is installed on nail-anvil hat 11; When retainer ring 14 is in the time locking station,Retainer ring 14 is sheathed on the overlapping portion outside of connecting rod 112 and nail anvil rod 12, connecting rod 112 and nail anvil rod12 outer surface all with the contacted inner surfaces of retainer ring 14 with locking connecting rod 112 and nail anvil rod 12, elasticityActuator 15 is in energy accumulating state; Retainer ring 14 distal direction under propeller 13 promotes moves to solutionWhen lock station, remove the locking between nail anvil rod 12 and connecting rod 112, nail-anvil hat 11 is at elastic drive part 15The power of releasing effect under move to station turning.
For ease of describing, while being set in surgical operating instrument operation, be nearside near user's a side, away fromUser's a side is distally.
In above-mentioned nail-anvil assembly 1, when nail-anvil hat 11 is in sewing up station and retainer ring 14 in lockingWhen station, as shown in Figure 3 and Figure 4, retainer ring 14 is sheathed on connecting rod 112 and the nail anvil of nail-anvil hat 11The outer surface of the overlapping position of bar 12 and connecting rod 112 and nail anvil rod 12 all with the interior table of retainer ring 14Face offsets, now, and the axial line of the axial line of retainer ring 14 and connecting rod 112, the axle center of nail anvil rod 12Line overlaps, and connecting rod 112 can not rotate around the axial line of pivot 16 with respect to nail anvil rod 12, retainer ring 14Realize locking to connecting rod 112 and nail anvil rod 12, and then the phase of locking nail anvil rod 12 and nail-anvil hat 11To position relationship, nail-anvil hat 11 is remained on and can sew up station, now, elastic drive part 15 is in accumulation of energyState; When propeller 13 length side along nail anvil rod 12 under the drive unit 4 of surgical operating instrument drivesWhile movement to distal direction, as shown in Figure 5, propeller 13 drives retainer ring 14 distal direction to moveUntil the outer surface of nail anvil rod 12 no longer with the contacted inner surfaces of retainer ring 14, and then retainer ring 14 is separatedExcept the locking to relative position relation between nail anvil rod 12 and connecting rod 112, now, elastic drive part 15Release power, and then drive connecting rod 112 to rotate around pivot 16 with respect to nail anvil rod 12, nail-anvil hat 11 is movedMove to station turning.
Therefore, above-mentioned nail-anvil assembly can make nail-anvil hat 11 turn to upset in the time exiting tissueStation, what while reducing nail-anvil hat 11 through suture ring, need passes through area, and then reduces nail-anvil hat 11 opposite jointsThe damage of cyclization.
Above-mentioned elastic drive part 15 can have multiple choices mode:
Mode one, as shown in Figure 4, above-mentioned elastic drive part 15 can comprise spring; One end peace of springBe loaded on nail anvil rod 12, the other end is installed on nail-anvil hat 11, and nail-anvil hat 11 be in the time can sewing up station, bulletReleasing outside the axial line that force direction is positioned at pivot 15 of spring.
Preferably, when nail-anvil hat 11 is in the time can sewing up station, spring is in stretching energy accumulating state.
Preferably, when nail-anvil hat 11 is in the time can sewing up station, spring is in compress energy storage state.
On the basis of mode one, in a kind of optional embodiment, when nail-anvil hat 11 in can sew up station,Spring is in the time of compress energy storage state, and one end of the spring of mentioning in mode one is installed on nail anvil rod 12, anotherEnd is installed on nail-anvil hat 11, specifically comprises:
Nail anvil rod 12 is provided with steady pin, and nail-anvil hat 11 is provided with chute; Steady pin is passed through in one end of springBe installed on nail anvil rod 12, the other end and chute be slidably matched and with the bottom land of the chute (not shown) that offsets.
On the basis of mode one, in another kind of embodiment, as shown in Figure 4 and Figure 5, elastic drive part15 while being spring, and nail anvil rod 12 is provided with the first steady pin 152, and nail-anvil hat 11 is provided with the second steady pin151, one end of spring is installed on the first steady pin 152, and the other end is installed on the second steady pin 151;
The axle of the axial line of the first steady pin 152, the axial line of the second steady pin 151 and pivot 16Heart line is parallel to each other, nail-anvil hat 11 in the time can sewing up station, the axial line of the first steady pin 152,The axial line of the axial line of two steady pins 151 and pivot 16 is perpendicular to the first steady pin 152 axial linesPlane in projection between be triangularly arranged.
Like this, in the time that retainer ring 14 departs from the locking to nail anvil rod 12, connecting rod 112 springs are being released power mistakeIn journey, can drive connecting rod 112 to rotate around pivot 16 with respect to nail anvil rod 12, and then drive nail-anvil hat 11Upset.
Particularly, above-mentioned the second steady pin 151 can be arranged on the connecting rod 112 of nail-anvil hat 11, alsoCan be arranged on the cap body 111 of nail-anvil hat 11.
Mode two, above-mentioned elastic drive part 15 also comprises spring leaf, as shown in Figure 6.
Obviously, those skilled in the art can carry out various changes and modification and de-to the embodiment of the present inventionFrom the spirit and scope of the present invention. Like this, if these amendments of the present invention and modification belong to right of the present inventionRequire and the scope of equivalent technologies within, the present invention be also intended to comprise these change and modification interior.